Which best describes a molecule?

O

a unit made of different kinds of elements

a unit made of only one kind of element

a unit made of two or more atoms

a unit made of a single atom

O

O

The metric unit of force is the A. gram. B. kilogram. C. nanometer. D. newton.

Compare the forces of attraction between molecules in water, sugar and oxygen. Rank them in order from greatest to least. A) water, sugar, oxygen B) oxygen, water, sugar C) sugar, water, oxygen D) sugar, oxygen, water

The mineral magnesite contains magnesium carbonate, MgCO3 (molar mass = 84 g/mol), and other impurities. When a 1.26-g sample of magnesite was dissolved in hydrochloric acid, 0.22 g of CO2 was generated.

The Haber process for producing ammonia commercially is represented by the equation N2 (g) + 3H2 (g) - > 2NH3 (g). To completely convert 9.0 mol hydrogen gas to ammonia gas, how many moles of nitrogen gas are required?

What is the atomicity of carbon monoxide

How many atomic mass units are equal to 1.672*10-24 g of protons?

What is the name of the compound Sr3N2?

The water softener discussed here relies on precipitation softening also known as ion exchange. based o hte reactants used, what ions would remain in the softened water thaat would be consumed buy the homeowners

What would be the best technique to separate a soluble solid from a solution, like separating salt from a mixture of salt water?

What are metalloids used for